1. Surgery Department, Faculty of Medicine, King Khalid University, Abha, Saudi Arabia.
2. Surgery Department, GNP group, Abha, Saudi Arabia.
3. Surgery Department, King Fahd Armed Forces Hospital, Jeddah, Saudi Arabia.
4. Anesthesia Department, King Fahd Armed Forces Hospital, Jeddah, Saudi Arabia.
5. Psychiatry Division, Internal Medicine Department, Faculty of Medicine, King Khalid University, Abha, Saudi Arabia.